KR100464829B1 - Modular intervertebral fusion cage - Google Patents

Modular intervertebral fusion cage Download PDF

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Publication number
KR100464829B1
KR100464829B1 KR20010067094A KR20010067094A KR100464829B1 KR 100464829 B1 KR100464829 B1 KR 100464829B1 KR 20010067094 A KR20010067094 A KR 20010067094A KR 20010067094 A KR20010067094 A KR 20010067094A KR 100464829 B1 KR100464829 B1 KR 100464829B1
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South Korea
Prior art keywords
formed
angle
cage
side
inclined portion
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KR20010067094A
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Korean (ko)
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KR20030035156A (en
Inventor
이종서
박상수
정상일
임진용
Original Assignee
주식회사 솔고 바이오메디칼
이종서
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Priority to KR20010067094A priority Critical patent/KR100464829B1/en
Publication of KR20030035156A publication Critical patent/KR20030035156A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017Angular shapes
    • A61F2230/0019Angular shapes rectangular
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028Shapes in the form of latin or greek characters
    • A61F2230/0034D-shaped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0082Three-dimensional shapes parallelepipedal
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00023Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

A fusion cage adapted for promoting fusion of bone grafts or bone substitutes packed in the fusion cage with the adjoining vertebrae, wherein the fusion cage has a shape of cylindrical closed U of which upper and lower ends are opened such that an internal cavity is defined by a plane rear wall, both sidewalls, and a rounded front wall. An upper and lower ends of each sidewall are roundly swollen so as to secure enough contact with an upper and lower surfaces of the adjoined vertebrae.

Description

척추 추체간 유합 케이지{MODULAR INTERVERTEBRAL FUSION CAGE} Fusion between the vertebral interbody cages} {MODULAR INTERVERTEBRAL FUSION CAGE

본 발명은 척추 추체간 유합 케이지에 관한 것으로, 좀더 상세하게는 확실한 골유합을 촉진하기 위해 인체의 추체 형태에 적합한 기울기를 가지며 생체적합성이 뛰어난 재질로 만든 케이지에 관한 것이다. The present invention relates to a inter-vertebral spinal fusion cages, and more specifically, having a slope suitable for the pyramidal shape of the human body to promote the solid union made of highly biocompatible material cage.

척추는 몸통을 이루는 32∼35개의 척추골(vertebrae)과 각 추골 사이의 추간원판(intervertebral disks)으로 이루어졌으며, 체간의 지주를 이루고, 상단의 두개골과 하단의 골반을 연결한다. The spine was done in 32-35 of vertebrae (vertebrae) and the intervertebral disc (intervertebral disks) between each vertebral body to make up, constitute the holding of the trunk, and the connection at the top of the skull and the bottom of the pelvis. 척추골은 위로부터 7개의 경추(cervicalvertebrae), 12개의 흉추(thoracic vertebrae), 5개의 요추(lumbar vertebrae) 5개의 천추(sacral vertebrae), 3∼5개의미추(coccygeal vertebrae)라고 한다. Vertebrae are referred to as the seven cervical vertebrae (cervicalvertebrae), 12 of thoracic (thoracic vertebrae), 5 of the lumbar spine (lumbar vertebrae) 5 of sacrum (sacral vertebrae), 3~5 of Mitsu (coccygeal vertebrae) from above. 성인에서는 5개의 천추가 유합하여 1개의 천골(sacrum)이 되고, 또 3∼5개의 미추는 1개의 미골(coccys)이 되어있다. In adults, the five sacral fusion, and the one sacrum (sacrum), addition of 3 to 5 Caudal is the one coccyx (coccys).

손상된 척추부의 치료를 위한 전통적인 치료는 추체간 유합 시술이다. Traditional therapy for the treatment of damaged spinal interbody fusion cross-section is a procedure. 이러한 외과 수술절차의 하나는 외과 의사가 손상된 천연 디스크를 제거한 후 두 개의 인접한 척추 뼈를 하나로 유합한다. One of these surgical procedures is a fusion of two adjacent vertebrae together after surgeons remove the damaged natural disc. 이때, 인접한 척추 뼈들을 유합시키기 위해 케이지 등의 보철기구가 사용된다. At this time, the prosthetic device of the cage, such as fusion to the adjacent vertebrae is used.

현재 일반적으로 사용되고 있는 케이지(cage)는 그 형태에 따라 직육면체 형태의 박스형 케이지와 속이 빈 나사모양의 원통형 케이지를 들 수 있고, 케이지 내부에 환자의 추체 간 골유합을 가속화하고 안정화하기 위해 환자 자신의 장골에서 채취한 골편이나 타인의 골편 또는 골편 대체물을 넣어 사용한다. Current cage (cage) which is generally used may be of a rectangular parallelepiped shape of the box-shaped cage and the hollow cylindrical cage of a blank screw shape according to the shape, iliac patient's own to accelerate and stabilize the inter-vertebral bone union of the patient inside cage a fragment or use to put someone else's bone or bone substitutes taken from.

직육면체의 케이지는 추체골 단면과의 접촉면적이 다른 형태의 케이지에 비해 넓으나 케이지가 들어갈 부위의 디스크만을 제거하지 않고 유합을 촉진하기 위해 다른 부위의 디스크도 함께 제거하여야 하므로 시술시간이 길어지는 문제점이 존재하고 있고, 추체의 해부학적 평면에 적합한 형태로 되어있지 않기 때문에 유합의 최적조건을 만족시킨다고 보기는 어렵다. Of a rectangular parallelepiped cage problem that the treatment time increases, so the vertebrae bone section and the contact area of ​​different portions of the disk also be removed together in order to promote fusion, without broad or remove only the portion of the disc cage is fit compared to other forms of cage because this does not exist, and, and not in the form suitable for the anatomy of the vertebral plane view sikindago satisfy the optimum conditions of the union is difficult. 또한, 재료에 따라 탄소섬유 케이지와 티타늄 케이지로 나뉠 수 있는데, 이 중 탄소섬유는 피질골과 같은 탄력상수를 갖고 있다는 장점 이외에는 생체와의 이물질 반응과 탄소 섬유의 해리 및 이웃 조직으로의 파급 등 단점이 많이 보고되어 사용이 줄고 있다. In addition, a disadvantage there, depending on the material can be divided into a carbon fiber cage and titanium cage, of carbon fibers other than the advantage that it has a spring constant such as a cortical bone, such as the ripple of the foreign body reaction of the living body with the carbon dissociation and neighboring tissue of the fiber there is a lot to see declining use.

한편, 나사형태의 케이지는 케이지가 들어갈 부위의 디스크만 제거하여 비교적 쉽게 삽입할 수 있는 장점이 있으나 디스크를 완전히 제거하지 않는 시술기법이 골유합이 일어날 수 있는 최적의 환경을 만들어 주지 못하며 나사산이 차지하는 두께로 인하여 골편을 넣을 수 있는 부피가 상대적으로 줄어들고 그나마 척추체의 골단면과 골편이 접촉할 수 있는 부위가 조그마한 여러 개의 구멍으로 이루어져 확실한 골유합을 기대하기가 어렵다. On the other hand, the screw type cage, but the benefits that can be relatively easily inserted and removed only the disk of sites cage go mothamyeo not make the best environment in which treatment method does not completely remove the disc may occur union thick threaded occupied due to the volume that holds the bone fragments relative decline dont it is difficult to expect the vertebral bone sections and solid union consists of multiple small holes for the area fragments that can be contacted.

또한, 추체 상하의 단단한 골단면을 제거해야 하기 때문에 추체간 높이를 확고히 유지하지 못하고 추체간 간격이 가라앉는 단점도 지적되고 있다. In addition, the vertebral interbody does not hold firmly the height because you have to remove the upper and lower solid bone section has been pointed out also sits between two vertebrae spacing Go disadvantages.

한편, 사람의 추체는 그 상면과 하면이 편평한 면으로 되어 있지 않고 중앙부분이 움푹하게 파여져 있으며 각 사람마다 다른 형태를 가지고 있기 때문에 상술한 종래의 직육면체 케이지나 나사형태의 케이지로는 인체의 해부학적 구조에 맞게 접촉할 수 없는 문제점이 있었다. On the other hand, the vertebrae of the person is payeojyeo to the hollow central portion does not have a flat surface when the upper surface thereof to pass a conventional rectangular parallelepiped K of the screw type cage described above because it has a different form for each person anatomy of the human body enemy there was a problem that can not be contacted for the structure.

즉, 사람의 추체는 직선적인 형상으로 이루어진 것이 아니라 연속적으로 기울기가 변하는 곡선의 형태로 이루어져 있기 때문에 추체간 삽입되는 케이지가 직선형인 경우 추체와 케이지 간의 긴밀한 접촉이 어려운 단점이 있었다. That is, the vertebrae of the person is because, rather than consisting of a linear shape made in the form of a curve where the slope changes continuously when the cage is inserted between vertebral bodies of the straight had a close contact between the vertebral bodies is difficult and cage.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 확실한 골유합을 이룰 수 있는 추체간 유합 케이지를 제공하는데 그 목적이 있다. Thus the present invention has been made in view of the above problems, there is provided a fusion cage between the vertebral bodies that can achieve a solid fusion.

본 발명의 다른 목적으로는 추체간 높이를 확고히 유지하고 접촉면적을 넓혀서 골다공증 환자같이 골밀도가 적은 경우 케이지가 척추체 안으로 파고 들어가는 싱킹-인(sinking-in) 현상을 방지하기 위한 추체간 유합 케이지를 제공하고자 하는 것이다. A further object of the present invention into a sinking held firmly inter vertebral height and widen the contact area digging when the bone density less as osteoporosis cage in the vertebral body - provides interbody fusion cage to prevent the (sinking-in) developing would you want to.

본 발명의 또다른 목적으로는 추체간 유합할 때 최적의 기울기로 접촉하기가 용이하여 인체의 해부학적 구조에 맞게 접촉할 수 있는 추체간 유합 케이지를 제공하고자 하는 것이다. Another object of the present invention is to provide a fusion cage between vertebral bodies, which can be brought into contact according to the anatomy of the human body and is easy to contact with the slope of the best when the union between the vertebrae.

본 발명의 또다른 목적으로는 생체적합성이 뛰어난 추체간 유합 케이지를 제공하고자 하는 것이다. Another object of the present invention is to provide a fusion cage between vertebral bodies excellent in biocompatibility.

도1은 본 발명의 케이지를 도시한 사시도. Figure 1 is a perspective view of the cage of the present invention.

도2는 본 발명의 케이지를 도시한 정면도. 2 is a front view showing the cage of the present invention.

도3의 (a) 내지 (b)는 본 발명의 케이지의 상면 경사각을 도시한 정면도. (A) to (b) of Fig. 3 is a front view showing the inclination angle of the upper surface of the invention the cage.

도4의 (a) 내지 (b)는 본 발명의 케이지의 하면 경사각을 도시한 정면도. (A) to (b) of Fig. 4 is a front view showing the inclination angle when the cage of the present invention.

도5는 본 발명의 케이지를 도시한 평면도. Figure 5 is a plan view showing the cage of the present invention.

도6은 본 발명의 케이지가 적용된 상태를 도시한 측면도. Figure 6 is a side view showing a state in which the cage of the present invention is applied.

도7은 본 발명의 케이지가 적용된 상태를 도시한 평면도. Figure 7 is a plan view showing a state in which the cage of the present invention is applied.

<도면 주요 부분에 대한 부호의 설명> <Drawings Description of the Related>

10 : 케이지 11 : 수직면 10: 11 Cage: vertical

12 : 굴곡면 13 : 통공 12: curved surface 13: through-hole

14 : 나사구멍 15,16 : 요철 14: threaded hole 15, 16: convex

H1 : 제1경사부 H2 : 제2경사부 H1: first inclined portion H2: second inclined portion

H3 : 제3경사부 H4 : 제4경사부 H3: third inclined portion H4: fourth inclined portion

H5 : 제5경사부 H6 : 제6경사부 H5: a fifth inclined portion H6: sixth inclined portion

H7 : 제7경사부 L1 : 제1경사부 H7: a seventh inclined portion L1: first inclined portion

L2 : 제2경사부 L3 : 제3경사부 L2: second inclined portion L3: third inclined portion

L4 : 제4경사부 L4: fourth inclined portion

상기의 목적을 달성하기 위하여 본 발명은 인접하는 추체 사이에 삽입되어추체간 유합에 사용되는 케이지에 있어서, 케이지의 상면과 하면에는 복수개의 요철(凹凸)이 연속적으로 형성되며, 복수개의 상기 요철은 케이지가 삽입되는 추체의 면과 접촉이 용이하도록 수평선을 기준으로 다양한 경사각을 갖도록 형성되는 것을 특징으로 하는 척추 추체간 유합 케이지가 제공된다. The present invention for achieving the above object is according to which is inserted between adjacent vertebrae using a fusion between the vertebral cage, the upper face and the lower face of the cage, and a plurality of concave-convex (凹凸) are continuously formed, the plurality of said irregularities is the spinal fusion cage between vertebral bodies, characterized in that the cage is formed to have a different angle of inclination relative to the horizontal to facilitate the surface in contact with the vertebral bodies to be inserted, is provided.

상기 케이지는 소정의 높이를 갖는 장방형 고리형상이며, 일측에는 수직면이 형성되고 타측에는 둥글게 라운딩된 굴곡면이 형성되는 것을 특징으로 한다. Wherein the cage is a rectangular ring shape having a predetermined height at one side is characterized in that the curved surface is a vertical surface is formed rounded and rounding to form the other side.

상기 케이지의 상면에 형성된 각각의 요철의 철부와 수평선이 갖는 각도는 상기 굴곡면 측에서 약 5.5~6.5°각도이며, 상기 수직면 측으로 갈수록 점차 감소하여 약 2.0~2.5°각도의 경사각으로 형성되고 상기 수직면 측에서는 약 12.0~13.0°각도의 경사각을 갖도록 형성되는 것을 특징으로 한다. Angle with the convex portion and the horizontal line of each of the irregularities that are formed on the upper surface of the cage is a curved surface is about 5.5 ~ 6.5 ° angle from the side, is formed with a tilt angle of approximately 2.0 ~ 2.5 ° angle of the vertical plane by increasing gradually reduced toward the vertical plane side, characterized in that the angle formed to have an inclination angle of about 12.0 ~ 13.0 °.

상기 케이지의 하면에 형성된 각각의 요철의 철부와 수평선이 갖는 각도는 상기 굴곡면 측에서 약 4.5~5.5°각도이며, 상기 수직면 측으로 갈수록 점차 감소하여 약 2.5~3.0°각도의 경사각으로 형성되고 상기 수직면 측에서는 약 4.0~5.0°각도의 경사각을 갖도록 형성되는 것을 특징으로 한다. Angle with the convex portion and the horizontal line of each of the irregularities that are formed on a bottom surface of the cage is a curved surface is about the angle 4.5 ~ 5.5 ° from the side, gradually decreases toward the side of the vertical plane and is formed with a tilt angle of approximately 2.5 ~ 3.0 ° angle of the vertical plane It characterized in that the side formed to have an inclination angle of about 4.0 ~ 5.0 ° angle.

상기 케이지의 상면을 이루는 요철의 철부는 수평선을 기준으로 경사지게 형성되어 각각 다른 각도를 갖는 7개의 구간으로 구분되며, 상기 굴곡면 측에서 수평선과 이루는 각도가 약 5.5~6.5°인 제1경사부와, 상기 굴곡면 측에서 수평선과 이루는 각도가 약 3.0~4.0°인 제2경사부와, 상기 굴곡면 측에서 수평선과 이루는 각도가 약 2.0~2.5°인 제3경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 2.5~3.0°인 제4경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 7.0~8.0°인 제5경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 9.0~10.0°인 제6경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 12.0~13.0°인 제7경사부로 구성되며 상기 각각의 구간은 순차적으로 형성되는 것을 특징으로 한다. The convex portion of the unevenness forming the upper surface of the cage are inclined relative to the horizontal line is divided into seven sections with different angles, respectively, the curved surface the angular horizontal and forms at the side of about 5.5 ~ 6.5 ° of the first inclined portion and , the curved surface the angular horizontal and forms at the side of about 3.0 ~ 4.0 ° of the second inclined portion, and the curved surface side of the horizon and the angle is about 2.0 ~ 2.5 ° from the third inclined portion and a horizontal line at the vertical surface side and an angle of about 2.5 ~ 3.0 ° of the fourth inclined portion and the horizontal line and the angle formed by the vertical side of about 7.0 ~ 8.0 ° of the and 5 angled portion, the horizontal line and the angle formed by the vertical sides about 9.0 ~ 10.0 ° the sixth inclined portion and is constituted by the vertical side portion and a seventh horizontal tilt angle of approximately 12.0 ~ 13.0 ° forming section of each may be formed sequentially.

상기 케이지의 하면을 이루는 요철의 철부는 수평선을 기준으로 경사지게 형성되어 각각 다른 각도를 갖는 4개의 구간으로 구분되며, 상기 4개의 구간은 상기 굴곡면 측에서 수평선과 이루는 각도가 약 4.5~5.5°인 제1경사부와, 상기 굴곡면 측에서 수평선과 이루는 각도가 약 2.5~3.0°인 제2경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 1.5~2.5°인 제3경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 4.0~5.0°인 제4경사부로 구성되는 것을 특징으로 한다. The convex portion of the unevenness forming the lower surface of the cage is formed obliquely relative to the horizontal line is divided into four sections having different angles, respectively, the four sections is the angle formed with the horizontal line from the curved surface side of about 4.5 ~ 5.5 ° and the first inclined portion and said curved surface has an angle at the side constituting the horizontal line of about 2.5 ~ 3.0 ° of the second inclined portion and the horizontal line and the angle formed by the vertical side of about 1.5 ~ 2.5 ° the third inclined portion, wherein It characterized in that the horizontal and an angle from the vertical surface side are composed of a fourth tilting of about 4.0 ~ 5.0 °.

여기서, 상기 케이지의 상면을 이루는 제1경사부는 약 6°의 각도로 형성되고, 제2경사부는 약 3.5°의 각도로 형성되고, 제3경사부는 약 2°의 각도로 형성되고, 제4경사부는 약 2.7°의 각도로 형성되고, 제5경사부는 약 7.5°의 각도로 형성되고, 제6경사부는 약 9.5°의 각도로 형성되고, 제7경사부는 약 12.6°의 각도로 형성되는 것이 바람직하다. Here, formed at an angle of about 6 ° the first ramp forming the upper surface of the cage, the second inclined portion is formed at an angle of about 3.5 °, the third inclined portion is formed at an angle of about 2 °, fourth tilting unit preferably being formed at an angle of about 2.7 °, a fifth inclined portion is formed at an angle of about 7.5 °, a sixth inclined portion is formed at an angle of about 9.5 °, forming an angle of a seventh ramp of about 12.6 ° Do.

또한, 상기 케이지의 하면을 이루는 제1경사부는 약 5.0°의 각도로 형성되고, 제2경사부는 약 2.7°의 각도로 형성되고, 제3경사부는 약 2.0°의 각도로 형성되고, 제4경사부는 약 4.2°의 각도로 형성되는 것이 바람직하다. Further, formed in the angle of the first inclined portion approximately 5.0 ° forming the lower surface of the cage, the second inclined portion is formed at an angle of about 2.7 °, the third inclined portion is formed at an angle of about 2.0 °, fourth tilting portion is preferably formed at an angle of about 4.2 °.

상기 케이지는 다수개의 통공이 형성되며, 상기 통공은 꽃모양으로 다수개가 방사형으로 형성되는 것을 특징으로 한다. The cages are a plurality of through holes are formed, the through hole is characterized in that a plurality dog ​​formed radially in a flower shape.

또한, 상기 수직면과 굴곡면에는 케이지 삽입시 삽입기구와 연결되는 원형의나사구멍이 형성되고, 상기 수직면에는 케이지 삽입시 삽입기구와 결합시키기 위한 수직홈이 형성된다. Further, a screw hole that has a circular connection with the insertion tool when the insertion cage, the vertical surface and a curved surface is formed on the vertical face is formed with a vertical groove for engaging with the insertion tool when the insertion cage.

이하, 본 발명의 척추 추체간 유합 케이지의 일실시예를 첨부한 도면을 참조로 하여 상세히 설명하면 다음과 같다. Hereinafter, described in detail with the accompanying drawings, one embodiment of a spinal fusion cage between vertebral bodies of the present invention by reference as follows:

본 발명의 케이지는 한 개 혹은 여러 개를 조합하여 사용 가능한 모듈(module)형 케이지로서, 첨부한 도1에 도시한 바와 같이, 소정의 높이를 갖는 장방형 고리형상이며, 일측에는 수직면(11)이 형성되고 타측에는 둥글게 라운딩된 굴곡면(12)이 형성된 형상이다. The cage of the present invention is one or a module (module) Type Cage available by any combination of them, a rectangular ring shape having a predetermined height, as shown in Figure 1 attached, one side of the vertical plane 11 formed and the other side is a round curved surface 12 is formed rounded shape.

또한, 케이지(10)의 상면과 하면에는 복수개의 요철(凹凸)(15)(16)이 연속적으로 형성되어 있다. Further, the upper surface and the lower surface of the cage 10 has a plurality of irregularities (凹凸) (15) (16) are formed continuously.

본 발명의 케이지는 상기 요철(15)(16)이 케이지(10)가 삽입되는 추체의 면과 접촉이 용이하도록 수평선을 기준으로 다양한 경사각을 갖도록 형성된다. The cage of the present invention is formed to have a variety of tilt angles relative to the horizontal to facilitate the surface in contact with the vertebral bodies on which the irregularities (15) (16) The cage 10 is inserted.

여기서 수평선이라 함은 상기 수직면(11)과 직각을 이루는 가상의 선을 말하는 것으로, 상기 경사각의 각도를 측정하는 기준선을 말한다. Here, as is also referring to an imaginary line forming the vertical surface 11 and the right angle as the horizon, it refers to a reference line for measuring the angle of the inclination angle.

상기 케이지의 상면과 하면에 형성된 요철은 다양한 모양으로 형성가능하며 본 발명에서 일실시예로 제시한 케이지(10)는 도1에서 보는 바와 같이, 물결치는 모양과 유사한 형상의 요철이 형성되며 이와 같은 요철로 인해 척추체의 비틀림이나 굽힘에 대해 미끄러지지 않게 된다. The irregularities that are formed on the upper and lower surfaces of the cage can be formed in various shapes, and as shown in the present invention one embodiment the cage 10 is a one provided with from, the unevenness of the shape similar to waving shape is formed such due to the irregularities are not slipping on the vertebral body of the torsion or bending.

또한, 상기 케이지(10)의 상면에 형성된 각각의 요철(15)의 철부는 수평선을 기준으로 경사지게 형성되어 도2에 도시한 바와 같이, 각각 다른 각도를 갖는 7개의 구간으로 구분되는데, 이 7개의 구간은 상기 굴곡면(12) 측에서부터 제1경사부(H1), 제2경사부(H2), 제3경사부(H3), 제4경사부(H4), 제5경사부(H5), 제6경사부(H6), 제7경사부(H7)로 구성되며, 상기 제1경사부(H1)를 구성하는 상면은 상기 굴곡면(12)을 향하여 하향경사져 있는 형상으로, 이 상면이 수평선과 이루는 각도는 약 5.5~6.5°이며, 바람직하게는 약 6°의 각도로 형성된다. Further, as the convex portion of each of the irregularities 15 formed on the upper surface of the cage 10 is shown in Fig. 2 is formed to be inclined relative to the horizontal line, are classified into seven sections each having a different angle, the seven interval has a first inclined portion (H1), the second inclined portion (H2), a third inclined portion (H3), a fourth inclined portion (H4), a fifth inclined portion (H5) from the curved surface 12 side, the sixth inclined part (H6), claim 7 is composed of the inclined portion (H7), wherein a shape inclined downward the upper surface constituting the first inclined portion (H1) is toward the curved surface 12, the upper surface is horizontal and the angle is about 5.5 ~ 6.5 °, preferably formed at an angle of about 6 °.

첨부한 도3의 (a) 내지 (b)는 본 발명의 케이지의 상면 경사각을 도시한 정면도로서, 상기 제2경사부(H2)를 구성하는 요철의 철부도 상기 굴곡면(12)을 향하여 하향경사져 있으며 이 철부가 수평선과 이루는 각도는 약 3.0~4.0°이고, 가장 바람직하게는 약 3.5°의 각도로 형성된다. (A) of Fig accompanying from 3 to (b) it is downwardly toward the second inclined portion (H2) convex also the curved surface 12 of the concave-convex to configure a front view showing the upper surface of the inclination angle of the of the invention the cage inclined angle, and the convex portion constituting the horizontal line and are formed at an angle of about 3.0 ~ 4.0 °, and most preferably from about 3.5 °.

또한, 상기 제3경사부(H3)를 구성하는 요철의 철부도 상기 굴곡면(12)을 향하여 하향경사져 있으며 이 철부가 수평선과 이루는 각도는 약 2.0~2.5°이며, 가장 바람직하게는 약 2°의 각도로 형성된다. In addition, the first towards the three inclined portions (H3) convex also the curved surface 12 of the irregularities constituting the inclined downward and the angle is convex the forms and the horizontal is about 2.0 ~ 2.5 °, most preferably about 2 ° a is formed at an angle.

한편, 상기 제4경사부(H4), 제5경사부(H5), 제6경사부(H6), 제7경사부(H7)는 상기 수직면(11)을 향하여 하향경사지게 형성된 것으로, 상기 제4경사부(H4)가 수평선과 이루는 각도는 약 2.5~3.0°으로, 가장 바람직하게는 약 2.7°의 각도로 형성된다. On the other hand, the fourth inclined portion (H4), a fifth inclined portion (H5), the sixth inclined part (H6), the seventh inclined portion (H7) is to be formed downward inclined toward the vertical surface 11, and the fourth angle of the inclined portion (H4) forms with the horizontal is from about to 2.5 ~ 3.0 °, and most preferably is formed at an angle of about 2.7 °.

또한, 상기 제5경사부(H5)가 수평선과 이루는 각도는 약 7.0~8.0°이며, 가장 바람직하게는 약 7.5°의 각도로 형성된다. In addition, the angle of the fifth inclined portion (H5) that make up the horizontal line is about 7.0 ~ 8.0 °, and most preferably is formed at an angle of about 7.5 °.

또한, 상기 제6경사부(H6)가 수평선과 이루는 각도는 약 9.0~10.0°이며, 가장 바람직하게는 약 9.5°의 각도로 형성된다. In addition, the angle of the sixth inclined part (H6) and forming a horizontal line is about 9.0 ~ 10.0 °, is formed with a most preferred angle of between about 9.5 °.

또한, 상기 제7경사부(H7)가 수평선과 이루는 각도는 약 12.0~13.0°이며, 가장 바람직하게는 약 12.6°의 각도로 형성된다. Further, the seventh angle inclined portion (H7) is forming the horizontal is approximately 12.0 ~ 13.0 °, and most preferably is formed at an angle of about 12.6 °.

또한, 상기 케이지(10)의 하면에 형성된 각각의 요철(16)의 철부는 수평선을 기준으로 경사지게 형성되어 도2에 도시한 바와 같이, 각각 다른 각도를 갖는 4개의 구간으로 구분되는데, 상기 4개의 구간은 상기 굴곡면(12) 측에서 수평선과 이루는 각도가 약 4.5~5.5°인 제1경사부(L1)와, 상기 굴곡면(12) 측에서 수평선과 이루는 각도가 약 2.5~3.0°인 제2경사부(L2)와, 상기 수직면(11) 측에서 수평선과 이루는 각도가 약 1.5~2.5°의 경사각을 갖는 제3경사부(L3)와, 상기 수직면(11) 측에서 수평선과 이루는 각도가 약 4.0~5.0°인 제4경사부(L4)로 구성된다. Further, as the convex portion of each of the irregularities 16 formed on a bottom surface of the cage 10 is shown in Fig. 2 is formed to be inclined relative to the horizontal line, are classified into four sections, each having different angles, the four a section is the curved surface 12, the angle is from about 4.5 to from the side forms with the horizon 5.5 ° of the first inclined portion (L1), and the angle formed with the horizontal line from the curved surface 12 side of about 2.5 ~ 3.0 ° the and a second inclined portion (L2), a third inclined portion (L3), and a horizontal and an angle from the vertical surface 11 side the angle formed with the horizontal line from the vertical surface 11 side with an inclination angle of about 1.5 ~ 2.5 ° It consists of about 4.0 ~ 5.0 ° of the fourth inclined portion (L4).

첨부한 도4의 (a) 내지 (b)는 본 발명의 케이지의 하면 경사각을 도시한 정면도로서, 상기 제1경사부(L1)는 약 5.0°의 각도로 형성되고, 제2경사부(L2)는 약 2.7°의 각도로 형성되고, 제3경사부(L3)는 약 2.0°의 각도로 형성되고, 제4경사부(L4)는 약 4.2°의 각도로 형성되는 것이 가장 바람직하다. (A) of FIG attached 4 to (b) is a front view showing a when the inclination angle of the of the present invention, the cage, the first inclined portion (L1) is formed at an angle of about 5.0 °, the second inclined portion (L2 ) are formed at an angle of about 2.7 °, the third inclined portion (L3) is formed at an angle of about 2.0 °, a fourth inclined section (L4) is most preferably formed at an angle of about 4.2 °.

또한, 본 고안의 케이지(10)는 다수개의 통공(13)을 형성함으로써 골편이 이탈되지 않으며 골유합이 잘 되도록 하였다. In addition, the cage 10 of the present design was adjusted not by forming a plurality of holes (13) being separated a fragment good union.

여기서, 상기 통공(13)은 마치 꽃모양으로 다수개가 방사형으로 형성되어 있으며 이와 같은 형상을 골유합에 도움을 준다. Here, the through hole 13, and if the number of dogs formed radially in a flower shape aids such a shape to the union.

또한, 상기 수직면(11)과 굴곡면(12)에는 케이지 삽입시 삽입기구와 연결되는 원형의 나사구멍(14)이 형성되어 있고, 상기 수직면(11)에는 케이지 삽입시 삽입기구와 결합시키기 위한 수직홈(17)(도5 참조)이 형성되어 있다. Further, the vertical for engaging with the vertical surface 11 and the curved surface 12 is formed on the screw hole 14 of the circle that is connected to the insertion tool when the insertion cage, the vertical surface 11 is inserted into the insertion cage mechanism the groove 17 (see Fig. 5) is formed.

첨부한 도5는 본 발명의 케이지를 도시한 평면도이고, 도6은 본 발명의 케이지가 인체 내 적용된 상태를 도시한 측면도이며, 도7은 본 발명의 케이지가 적용된 상태를 도시한 평면도로서, 본 발명의 케이지는 추체간 유합할 때 최적의 기울기로 접촉하기가 용이하여 인체의 해부학적 구조에 맞게 접촉할 수 있다. FIG accompanying 5 is a plan view showing the cage of the present invention, Figure 6 is a side view showing a state in which the present invention cage applied to the human body, Figure 7 is a plan view showing a state in which the present invention the cage is applied, the of the invention the cage is to be easy to contact with the slope of the best when the fusion between the vertebrae in contact according to the anatomy of the human body.

또한, 본 발명의 케이지(10)는 생체적합성이 뛰어난 순수티타늄 또는 티타늄 합금{예를 들어, Ti-6Al-4V-ELI}으로 된다. In addition, the cage 10 of the present invention {e.g., Ti-6Al-4V-ELI} highly pure titanium or titanium alloy is a biocompatible.

또 다른 재료로는 인체 내에서 흡수되거나 분해되는 재질{예를 들면, PLLA(Poly L-Lactic Acid), PLGA(Poly Lactic-co-glycolic Acid), PGA(Poly Glycolic Acid), PCL(Poly Carprolactone) 등}을 사용한다. Another material is the material to be absorbed or degraded in the human body {for instance, PLLA (Poly L-Lactic Acid), PLGA (Poly Lactic-co-glycolic Acid), (Poly Glycolic Acid) PGA, PCL (Poly Carprolactone) It uses the like}.

상기한 척추 추체간 유합 케이지는 상면과 하면에 형성된 요철의 철부가 각각 다른 각도를 갖는 경사면으로 형성되어 있으므로 사람마다 다른 형태를 가지고 있는 추체에 최적의 기울기로 접촉시킬 수 있다. The spine interbody fusion cage is because the convex portion of the unevenness formed on the upper and lower surfaces are formed an inclined surface having a different angle in each vertebral body, which can have a different form for each person can be brought into contact with the slope of the best.

상기한 추체간 유합 케이지는 추체간 유합할 때 최적의 기울기로 접촉하기가 용이하여 인체의 해부학적 구조에 맞게 접촉할 수 있는 효과가 있다. Between the above-mentioned vertebral body fusion cage may be it is that it is easy to contact with the slope of the best when the fusion between the vertebrae in contact according to the anatomy of the human body effect.

또한, 통공으로 인해 확실한 골유합을 이룰 수 있는 효과가 있다. In addition, there is an effect that can be achieved for certain union due to the holes.

또한, 생체적합성이 뛰어난 순수 티타늄 또는 티타늄 합금재질 또는 생분해성 또는 생체흡수성 재질을 사용함으로써 생체적합성이 좋은 효과가 있다. In addition, a good biocompatibility effects by using a biocompatible highly pure titanium or a titanium alloy material or a biodegradable or bioabsorbable material.

또한, 케이지와 추체간의 접촉면적을 넓혀서 골다공증 환자같이 골밀도가 적은 경우 케이지가 척추체 안으로 파고 들어가는 싱킹-인(Sinking-in) 현상을 방지할 수 있다. In the case widen the contact area between the cage and the vertebral bone density is small as osteoporosis are vertebral cage into sink coming into - it is possible to prevent the (Sinking-in) phenomenon.

Claims (12)

  1. 삭제 delete
  2. 삭제 delete
  3. 인접하는 추체 사이에 삽입되어 추체간 유합에 사용되는 케이지에 있어서, In is inserted between the adjacent vertebral bodies to the cage used in the fusion between the vertebral bodies,
    상기 케이지는 소정의 높이를 갖는 장방형 고리형상이고, 일측에는 수직면이 형성되고 타측에는 둥굴게 라운딩된 굴곡면이 형성되며, Wherein the cage is a rectangular ring shape having a predetermined height, one side of the vertical surface is formed in the other round a rounded curved surface formed gulge side,
    상기 케이지의 상면과 하면에는 복수개의 요철(凹凸)이 연속적으로 형성되고, The top and bottom of the cage has a plurality of irregularities (凹凸) are continuously formed,
    복수개의 상기 요철은 케이지가 삽입되는 추체의 면과 접촉이 용이하도록 수평선을 기준으로 다양한 경사각을 갖도록 형성되며, A plurality of the concave-convex is formed to have a different angle of inclination relative to the horizontal to facilitate the surface in contact with the vertebral bodies to be inserted into the cage,
    상기 케이지의 상면에 형성된 각각의 요철의 철부와 수평선이 갖는 각도는 상기 굴곡면 측에서 약 5.5~6.5°이며, 상기 수직면 측으로 갈수록 점차 감소하여 약 2.0~2.5°의 경사각으로 형성되고 상기 수직면 측에서는 약 12.0~13.0°의 경사각을 갖도록 형성되는 것을 특징으로 하는 척추 추체간 유합 케이지. Angle is convex and the horizontal line of each of the irregularities that are formed on the upper surface of the cage which is the curved face a side of about 5.5 ~ 6.5 ° in, by increasing gradually reduced toward the vertical face is formed with a tilt angle of approximately 2.0 ~ 2.5 ° side, the vertical plane about 12.0 ~ 13.0 ° spinal fusion cage between the vertebral bodies, characterized in that is formed to have an inclination angle of.
  4. 인접하는 추체 사이에 삽입되어 추체간 유합에 사용되는 케이지에 있어서, In is inserted between the adjacent vertebral bodies to the cage used in the fusion between the vertebral bodies,
    상기 케이지는 소정의 높이를 갖는 장방형 고리형상이고, 일측에는 수직면이 형성되고 타측에는 둥굴게 라운딩된 굴곡면이 형성되며, Wherein the cage is a rectangular ring shape having a predetermined height, one side of the vertical surface is formed in the other round a rounded curved surface formed gulge side,
    상기 케이지의 상면과 하면에는 복수개의 요철(凹凸)이 연속적으로 형성되고, The top and bottom of the cage has a plurality of irregularities (凹凸) are continuously formed,
    복수개의 상기 요철은 케이지가 삽입되는 추체의 면과 접촉이 용이하도록 수평선을 기준으로 다양한 경사각을 갖도록 형성되며, A plurality of the concave-convex is formed to have a different angle of inclination relative to the horizontal to facilitate the surface in contact with the vertebral bodies to be inserted into the cage,
    상기 케이지의 하면에 형성된 각각의 요철의 철부와 수평선이 갖는 각도는 상기 굴곡면 측에서 약 4.5~5.5°이며, 상기 수직면 측으로 갈수록 점차 감소하여 약 2.5~3.0°의 경사각으로 형성되고 상기 수직면 측에서는 약 4.0~5.0°의 경사각을 갖도록 형성되는 것을 특징으로 하는 척추 추체간 유합 케이지. Angle with the convex portion and the horizontal line of each of the irregularities that are formed on a bottom surface of the cage is a curved surface and the side of about 4.5 ~ 5.5 ° in, by increasing gradually reduced toward the vertical face is formed with a tilt angle of approximately 2.5 ~ 3.0 ° side, the vertical plane about 4.0 to spinal fusion cage between the vertebral bodies, characterized in that is formed to have a tilt angle of 5.0 °.
  5. 제3항에 있어서, 상기 케이지의 상면을 이루는 요철의 철부는 수평선을 기준으로 경사지게 형성되어 각각 다른 각도를 갖는 7개의 구간으로 구분되며, 상기 굴곡면 측에서 수평선과 이루는 각도가 약 5.5~6.5°인 제1경사부와, 상기 굴곡면 측에서 수평선과 이루는 각도가 약 3.0~4.0°인 제2경사부와, 상기 굴곡면 측에서 수평선과 이루는 각도가 약 2.0~2.5°인 제3경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 2.5~3.0°인 제4경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 7.0~8.0°인 제5경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 9.0~10.0°인 제6경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 12.0~13.0°인 제7경사부로 구성되며 상기 각각의 구간은 순차적으로 형성되는 것을 특징으로 하는 척추 추체간 유합 케이지. The method of claim 3, wherein the convex portion of the unevenness forming the upper surface of the cage are inclined relative to the horizontal line is divided into seven sections with different angles, respectively, the angle the horizon and forming in said curved surface side of about 5.5 ~ 6.5 ° the first inclined portion and, with the curved surface side from the horizontal and angle between the two of about 3.0 ~ 4.0 ° the inclined portion, the curved surface of the angle in the side and horizontal lines that make about 2.0 ~ 2.5 ° the third inclined portion and , and the vertical side in the horizontal line and forming a fourth angle of inclination of about 2.5 ~ 3.0 ° portion, the horizontal and an angle from the vertical plane side of about 7.0 ~ 8.0 ° of the fifth inclined portion and a horizontal line and forming in the vertical plane side is an angle constituted by a seventh gradient is horizontal and forms an angle of approximately 12.0 ~ 13.0 ° at about 9.0 ~ 10.0 ° in the sixth inclined portion and the vertical side section of the each of the spinal vertebrae, characterized in that formed in sequence fusion cage between.
  6. 제4항에 있어서, 상기 케이지의 하면을 이루는 요철의 철부는 수평선을 기준으로 경사지게 형성되어 각각 다른 각도를 갖는 4개의 구간으로 구분되며, 상기 4개의 구간은 상기 굴곡면 측에서 수평선과 이루는 각도가 약 4.5~5.5°인 제1경사부와, 상기 굴곡면 측에서 수평선과 이루는 각도가 약 2.5~3.0°인 제2경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 1.5~2.5°인 제3경사부와, 상기 수직면 측에서 수평선과 이루는 각도가 약 4.0~5.0°인 제4경사부로 구성되는 것을 특징으로 하는 척추 추체간 유합 케이지. The method of claim 4, wherein the convex portion of the unevenness forming the lower surface of the cage are inclined relative to the horizontal line is divided into four sections having different angles, respectively, the four sections is the angle formed with the horizontal line from the curved surface side of about 4.5 ~ 5.5 ° of the first inclined portion and said curved surface has an angle at the side constituting the horizontal line of about 2.5 ~ 3.0 ° of the second inclined portion and the horizontal line and the angle formed by the vertical side of about 1.5 ~ 2.5 ° the 3 and inclined portions, spinal fusion cage between vertebral bodies, at the vertical surface side, characterized in that the angle formed with the horizontal lines composed of a fourth tilting of about 4.0 ~ 5.0 °.
  7. 제5항에 있어서, 제1경사부는 약 6°의 각도로 형성되고, 제2경사부는 약 3.5°의 각도로 형성되고, 제3경사부는 약 2°의 각도로 형성되고, 제4경사부는 약 2.7°의 각도로 형성되고, 제5경사부는 약 7.5°의 각도로 형성되고, 제6경사부는 약 9.5°의 각도로 형성되고, 제7경사부는 약 12.6°의 각도로 형성되는 것을 특징으로 하는 척추 추체간 유합 케이지. The method of claim 5, wherein the first inclined portion is formed at an angle of about 6 °, the second inclined portion is formed at an angle of about 3.5 °, the third inclined portion is formed at an angle of about 2 °, the fourth ramp of about is formed at an angle of 2.7 °, a fifth inclined portion is formed at an angle of about 7.5 °, a sixth inclined portion is formed at an angle of about 9.5 °, a seventh ramp, characterized in that formed at an angle of about 12.6 ° spinal fusion cage between the vertebrae.
  8. 제6항에 있어서, 제1경사부는 약 5.0°의 각도로 형성되고, 제2경사부는 약 2.7°의 각도로 형성되고, 제3경사부는 약 2.0°의 각도로 형성되고, 제4경사부는 약 4.2°의 각도로 형성되는 것을 특징으로 하는 척추 추체간 유합 케이지. The method of claim 6 wherein the first inclined portion is formed at an angle of about 5.0 °, the second inclined portion is formed at an angle of about 2.7 °, the third inclined portion is formed at an angle of about 2.0 °, the fourth ramp of about spinal fusion cage between vertebral bodies, characterized in that formed at an angle of 4.2 °.
  9. 삭제 delete
  10. 제3항 또는 제4항에 있어서, 상기 연결면은, According to claim 3 or claim 4, wherein the connecting surfaces,
    다수가 꽃모양의 방사형으로 형성된 통공을 구비하고 있는 것을 특징으로 하는 척추 추체간 유합 케이지. A plurality fusion cage between the vertebral spine, characterized in that comprises a hole formed in a radial shape of the flower shape.
  11. 제10항에 있어서, 상기 수직면과 굴곡면에는 케이지 삽입시 삽입기구와 연결되는 원형의 나사구멍이 형성되는 것을 특징으로 하는 척추 추체간 유합 케이지. 11. The method of claim 10, wherein a vertical plane and a curved surface, the fusion cage between the vertebral spine, characterized in that the screw holes in the circular connection and insertion tool during insertion cage formed.
  12. 제3항 또는 제4항에 있어서, 상기 수직면에는 케이지 삽입시 삽입기구와 결합시키기 위한 수직홈이 형성되는 것을 특징으로 하는 척추 추체간 유합 케이지. Claim 3 or claim 4, wherein the vertical plane, the cage fusion cage between the vertebral spine, characterized in that a vertical groove for engaging with the insertion tool is formed upon insertion.
KR20010067094A 2001-10-30 2001-10-30 Modular intervertebral fusion cage KR100464829B1 (en)

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